Liga Europa
In short
The UEFA Europa League is a major European football competition for clubs that do not qualify for the Champions League.
In plain words
It is a tournament where top teams from different European countries play against each other. The best teams move through knockout rounds until a single winner is crowned at the end of the season.
A simple example
A club from the English Premier League might play against a team from the German Bundesliga to earn points in the group stage.
Why it matters
Winning the trophy allows a club to qualify for the even more prestigious Champions League the following year. It also provides significant prize money and international fame.
Easy to mix up
Do not confuse it with the UEFA Conference League, which is the third-tier competition below it.